Yealink SIP-T48S - New in box

The Yealink SIP-T48S is a high-end IP phone designed for business environments, offering a range of features suited for VoIP (Voice over IP) services. 

Display

• 7-inch (800 x 480 pixels) capacitive color touch screen
• Backlight support

Audio Features

• HD Voice with Optima HD voice technology
• Full-duplex speakerphone with AEC (Acoustic Echo Cancellation)
• Support for wideband and narrowband codecs (Opus, G.722, G.711(A/μ), G.723.1, G.729AB, G.726, iLBC)

Network and Connectivity

• Dual-port Gigabit Ethernet (10/100/1000 Mbps)
• Power over Ethernet (PoE) support (IEEE 802.3af Class 3)
• Bluetooth support (via Yealink BT40 Bluetooth USB Dongle)
• Wi-Fi support (via Yealink WF40 or WF50 Wi-Fi USB Dongle)

Account and Call Features

• Supports up to 16 SIP accounts
• Call hold, mute, DND (Do Not Disturb)
• One-touch speed dial, redial, call forward, call waiting, call transfer
• 3-way conferencing
• XML/LDAP remote phonebook

Other Features

• USB 2.0 port for USB recording, Bluetooth, and Wi-Fi dongles
• Compatible with Yealink's EHS36 wireless headset adapter
• RJ9 headset port
• Supports expansion modules (Yealink EXP40) for additional line keys

Security

• Transport Layer Security (TLS)
• HTTPS, SRTP, OpenVPN, IPv6 support

Management and Provisioning

• Web-based management interface
• Auto-provisioning using TR-069, FTP, TFTP, HTTP, or HTTPS
• Yealink Redirection and Provisioning Service (RPS)

Power

• Power over Ethernet (PoE)
• Optional Yealink AC adapter available (5V/2A)